Results 161 to 170 of about 6,562 (255)

Evaluating multimodal commercial and open-source large language models for dynamical astronomy: a benchmark study of resonant behavior classification. [PDF]

Sci Rep
Smirnov E, Carruba V.
europepmc   +1 more source

Improved Post‐Processing Framework for Whole Slide Imaging and 3D Reconstruction

Microscopy Research and Technique, EarlyView.
Workflow for 3D reconstruction of marmoset whole‐slide histology. Individual tiles undergo vignette correction to address illumination artifacts before stitching into full‐section images. Sections are then reconstructed using the Possum framework, with a level‐set method incorporated at the nonlinear deformable stage to stabilize alignment and reduce ...
Emily L. De Leon Alvarado, Daryan Chitsaz, Ilana R. Leppert, Jennifer S. W. Campbell, Yangyingqi Zhou, G. Bruce Pike, Timothy E. Kennedy, Christine L. Tardif, Christopher D. Rowley   +8 more
wiley   +1 more source

COSMICA: A Novel Dataset for Astronomical Object Detection with Evaluation Across Diverse Detection Architectures. [PDF]

J Imaging
Piratinskii E, Rabaev I.
europepmc   +1 more source

Switchable Privacy Displays: Applications, Optical Measurements, and Evaluation With Focus on Automotive

Journal of the Society for Information Display, EarlyView.
Switchable‐privacy displays can be used to protect sensitive data in public spaces and to avoid driver distraction on codriver displays. The key optical parameters are the luminance in public and privacy modes, measured over the viewing angle, and the image quality for the intended observers.
Karlheinz Blankenbach
wiley   +1 more source

StarWhisper Telescope: an AI framework for automating end-to-end astronomical observations. [PDF]

Commun Eng
Wang C, Zhang Y, Li Y, Hu X, Mao Y, Chen X, Du P, Wang R, Wu Y, Yang H, Li Y, Wang B, Mu H, Chen X, He S, Mo H, Zhang L, Du L, Zhao Y, Tian J, Ge L, Mao Y, Li S, Wang Z, Lu X, Zou J, Huang Y, Sun N, Zheng J, He M, Bai Y, Jin J, Wu H, Liu J.   +33 more
europepmc   +1 more source

Ultrahigh‐Order Harmonic Mode‐Locked Optoelectronic Oscillator

Laser &Photonics Reviews, EarlyView.
This article demonstrates a record‐breaking microwave frequency comb generator using an ultrahigh‐harmonic‐order mode‐locked optoelectronic oscillator. By integrating dual recirculating loops into a low‐coherence system, the researchers achieved a harmonic order of 956 with superior noise suppression.
Zhuoran Wang, Santiago Bernal, David V. Plant, Lawrence R. Chen   +3 more
wiley   +1 more source

SLR-Net: Lightweight and Accurate Detection of Weak Small Objects in Satellite Laser Ranging Imagery. [PDF]

Sensors (Basel)
Zhu W, Hu J, Gong W, Wang Y, Zhang Y.
europepmc   +1 more source

Near‐Infrared Polarimetric Imaging With Nonlinear Flat‐Optics

Laser &Photonics Reviews, EarlyView.
ABSTRACT A compact and broadband polarimetric imaging platform is presented, based on second‐harmonic generation (SHG) in nonlinear flat‐optics. The system employs periodic all‐dielectric AlGaAs gratings to induce polarization‐dependent SH emission, enabling pixel by pixel direct retrieval of the full Stokes vector from an input intensity distribution ...
Evgenii Menshikov, Marco A. López Sánchez, Paolo Franceschini, Andrea Tognazzi, Domenico de Ceglia, Kristina Frizyuk, Costantino De Angelis   +6 more
wiley   +1 more source

Frigate: A Novel Dataset Comprising Wide Field-of-View Astronomical FITS Images of Low Earth Orbit Scenes for Machine Learning Applications. [PDF]

Sci Data
Roll DS, Kurt Z, Li Y, Dinsley R, Woo WL.   +4 more
europepmc   +1 more source

Revealing the Resonant Physics of Open Photonic Time Crystals

Laser &Photonics Reviews, EarlyView.
ABSTRACT Photonic time crystals (PTCs) are media whose permittivity is modulated periodically in time, enabling momentum bandgaps and parametric amplification of light. Their realization at the nanoscale can revolutionize the study of light‐matter interactions.
Adrià Canós Valero, Sergei Gladyshev, David Globosits, Stefan Rotter, Egor A. Muljarov, Thomas Weiss   +5 more
wiley   +1 more source